/* ==========================================================================
   XamSav — estilos globales
   ========================================================================== */

:root {
    --bg: #121319;
    --surface: #1a1b23;
    --surface-2: #22232d;
    --border: #2d2f3c;
    --text: #f2f3f7;
    --muted: #a3a6b8;
    --accent: #fa5c5c;
    --accent-strong: #ff7474;
    --accent-soft: rgba(250, 92, 92, 0.12);
    --radius: 14px;
    --max: 1160px;
    --nav-h: 72px;
    --font: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
    --mono: ui-monospace, "Cascadia Code", "SF Mono", Consolas, monospace;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--nav-h) + 12px);
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    font-size: 17px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img,
svg,
iframe {
    max-width: 100%;
}

a {
    color: inherit;
}

h1,
h2,
h3 {
    line-height: 1.15;
    margin: 0 0 0.5em;
    letter-spacing: -0.02em;
}

p {
    margin: 0 0 1em;
}

.container {
    width: min(var(--max), 100% - 40px);
    margin-inline: auto;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 8px;
    z-index: 100;
    background: var(--accent);
    color: #fff;
    padding: 8px 14px;
    border-radius: 8px;
}

.skip-link:focus {
    left: 8px;
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

/* ---------- Botones ---------- */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    font-family: inherit;
    transition: background-color 0.2s, border-color 0.2s, transform 0.2s;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background: var(--accent-strong);
}

.btn-ghost {
    background: transparent;
    color: var(--text);
    border-color: var(--border);
}

.btn-ghost:hover {
    border-color: var(--muted);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

/* ---------- Navegación ---------- */

.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    height: var(--nav-h);
    z-index: 50;
    background: rgba(18, 19, 25, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

.site-header.is-scrolled {
    border-bottom-color: var(--border);
}

.nav {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-size: 0.95rem;
}

.brand svg {
    width: 34px;
    height: 29px;
    color: var(--text);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links a {
    text-decoration: none;
    color: var(--muted);
    font-size: 0.95rem;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--text);
}

.nav-links .btn {
    color: #fff;
}

.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border);
    border-radius: 10px;
    width: 44px;
    height: 44px;
    color: var(--text);
    cursor: pointer;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
    display: block;
    width: 18px;
    height: 2px;
    background: currentColor;
    margin-inline: auto;
    position: relative;
    transition: transform 0.2s;
}

.nav-toggle span::before,
.nav-toggle span::after {
    content: "";
    position: absolute;
    left: 0;
}

.nav-toggle span::before {
    top: -6px;
}

.nav-toggle span::after {
    top: 6px;
}

.nav-toggle[aria-expanded="true"] span {
    background: transparent;
}

.nav-toggle[aria-expanded="true"] span::before {
    transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span::after {
    transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 860px) {
    .nav-toggle {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: var(--nav-h);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 12px 20px 24px;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
        display: none;
    }

    .nav-links.is-open {
        display: flex;
    }

    .nav-links a {
        display: block;
        padding: 14px 0;
        font-size: 1.05rem;
    }

    .nav-links li + li {
        border-top: 1px solid var(--border);
    }

    .nav-links .btn {
        justify-content: center;
        border-radius: 12px;
        margin-top: 12px;
    }
}

/* ---------- Hero ---------- */

.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100svh;
    display: flex;
    align-items: center;
    padding: calc(var(--nav-h) + 48px) 0 80px;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(60% 50% at 75% 45%, rgba(250, 92, 92, 0.14), transparent 70%),
        linear-gradient(var(--border) 1px, transparent 1px) 0 0 / 56px 56px,
        linear-gradient(90deg, var(--border) 1px, transparent 1px) 0 0 / 56px 56px;
    opacity: 0.35;
    mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
    pointer-events: none;
}

.hero-grid {
    position: relative;
    display: grid;
    grid-template-columns: 1.25fr 1fr;
    align-items: center;
    gap: 48px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--mono);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 20px;
}

.eyebrow::before {
    content: "";
    width: 24px;
    height: 1px;
    background: currentColor;
}

.hero h1 {
    font-size: clamp(2.4rem, 5.6vw, 4.2rem);
    font-weight: 800;
    margin-bottom: 24px;
}

.hero h1 em {
    font-style: normal;
    color: var(--accent);
}

.hero-lead {
    font-size: clamp(1.05rem, 1.6vw, 1.2rem);
    color: var(--muted);
    max-width: 38em;
    margin-bottom: 32px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.tag-list li {
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--muted);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 4px 12px;
}

.hero-logo {
    display: flex;
    justify-content: center;
}

.hero-logo svg {
    width: min(100%, 400px);
    height: auto;
    color: var(--text);
    filter: drop-shadow(0 0 60px rgba(250, 92, 92, 0.25));
}

@media (max-width: 860px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }

    .hero-logo {
        order: -1;
    }

    .hero-logo svg {
        width: 150px;
    }
}

/* ---------- Secciones ---------- */

.section {
    padding: 110px 0;
}

.section-alt {
    background: var(--surface);
    border-block: 1px solid var(--border);
}

.section-head {
    max-width: 720px;
    margin-bottom: 56px;
}

.section-head h2 {
    font-size: clamp(1.9rem, 3.6vw, 2.7rem);
}

.section-head p {
    color: var(--muted);
    font-size: 1.1rem;
}

@media (max-width: 640px) {
    .section {
        padding: 80px 0;
    }
}

/* ---------- Tarjetas ---------- */

.grid {
    display: grid;
    gap: 20px;
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
}

@media (max-width: 400px) {
    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }
}

.card {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: border-color 0.2s, transform 0.2s;
}

.section-alt .card {
    background: var(--bg);
}

.card:hover {
    border-color: #3d4052;
}

.card h3,
.card h4 {
    font-size: 1.2rem;
    line-height: 1.15;
    margin: 0 0 0.5em;
    letter-spacing: -0.02em;
}

/* ---------- Preguntas frecuentes ---------- */

.faq {
    max-width: 860px;
    display: grid;
    gap: 12px;
}

.faq details {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0 22px;
    transition: border-color 0.2s;
}

.faq details[open] {
    border-color: #3d4052;
}

.faq summary {
    cursor: pointer;
    list-style: none;
    padding: 18px 32px 18px 0;
    position: relative;
    font-weight: 600;
    font-size: 1.05rem;
}

.faq summary::-webkit-details-marker {
    display: none;
}

.faq summary::after {
    content: "+";
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    color: var(--accent);
    font-family: var(--mono);
    font-size: 1.3rem;
}

.faq details[open] summary::after {
    content: "−";
}

.faq summary h3 {
    display: inline;
    font-size: inherit;
    letter-spacing: 0;
    margin: 0;
}

.faq details p {
    color: var(--muted);
    margin: 0 0 20px;
}

.card p {
    color: var(--muted);
    font-size: 0.97rem;
}

.card p:last-child {
    margin-bottom: 0;
}

.icon {
    width: 46px;
    height: 46px;
    display: grid;
    place-items: center;
    border-radius: 12px;
    background: var(--accent-soft);
    color: var(--accent);
    margin-bottom: 20px;
}

.icon svg {
    width: 24px;
    height: 24px;
}

.card .tag-list {
    margin-top: 18px;
}

/* ---------- Formatos de colaboración ---------- */

.engagements {
    margin-top: 72px;
}

.engagements h3.subhead {
    font-size: 1.4rem;
    margin-bottom: 20px;
}

.engagement {
    position: relative;
}

.engagement .label {
    font-family: var(--mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    margin-bottom: 8px;
    display: block;
}

.engagement ul {
    margin: 0;
    padding-left: 1.1em;
    color: var(--muted);
    font-size: 0.95rem;
}

/* ---------- Portfolio ---------- */

.project.featured {
    grid-column: 1 / -1;
}

.lead-game {
    font-size: 1.1rem;
    color: var(--text);
}

.project {
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
}

.project-body {
    padding: 28px;
    flex: 1;
}

.project-meta {
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 8px;
}

.project-embed {
    padding: 0 20px 20px;
}

.project-embed iframe {
    display: block;
    width: 100%;
    height: 167px;
    border: 0;
    border-radius: 10px;
    background: var(--surface);
}

.lab {
    margin-top: 20px;
}

.lab .card {
    border-style: dashed;
    background: transparent;
}

.status {
    display: inline-block;
    font-family: var(--mono);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 3px 10px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent);
    margin-bottom: 14px;
}

/* ---------- Proceso ---------- */

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    counter-reset: step;
    list-style: none;
    padding: 0;
    margin: 0;
}

.steps li {
    counter-increment: step;
    border-top: 2px solid var(--border);
    padding-top: 24px;
}

.steps li::before {
    content: "0" counter(step);
    display: block;
    font-family: var(--mono);
    color: var(--accent);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.steps h3,
.steps h4 {
    font-size: 1.15rem;
}

.steps p {
    color: var(--muted);
    font-size: 0.97rem;
    margin: 0;
}

/* ---------- Estudio ---------- */

.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

@media (max-width: 860px) {
    .split {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

.split .lead {
    font-size: 1.15rem;
    color: var(--text);
}

.split p {
    color: var(--muted);
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 14px;
}

.feature-list li {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px 18px;
}

.section-alt .feature-list li {
    background: var(--bg);
}

.feature-list strong {
    display: block;
    margin-bottom: 2px;
}

.feature-list span {
    color: var(--muted);
    font-size: 0.95rem;
}

.feature-list svg {
    flex: none;
    width: 22px;
    height: 22px;
    color: var(--accent);
    margin-top: 2px;
}

.stack {
    margin-top: 32px;
}

.stack h3 {
    font-size: 0.85rem;
    font-family: var(--mono);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    font-weight: 500;
    margin-bottom: 12px;
}

/* ---------- Contacto ---------- */

.cta {
    text-align: center;
    background:
        radial-gradient(50% 80% at 50% 0%, rgba(250, 92, 92, 0.16), transparent 70%),
        var(--surface);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 72px 28px;
}

.cta h2 {
    font-size: clamp(1.9rem, 3.6vw, 2.7rem);
    max-width: 18em;
    margin-inline: auto;
}

.cta p {
    color: var(--muted);
    max-width: 36em;
    margin: 0 auto 32px;
    font-size: 1.1rem;
}

.cta .hero-actions {
    justify-content: center;
    margin-bottom: 36px;
}

.social {
    display: flex;
    justify-content: center;
    gap: 12px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.social a {
    width: 46px;
    height: 46px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    border: 1px solid var(--border);
    color: var(--muted);
    transition: color 0.2s, border-color 0.2s, background-color 0.2s;
}

.social a:hover {
    color: #fff;
    border-color: var(--accent);
    background: var(--accent-soft);
}

.social svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

/* ---------- Footer ---------- */

.site-footer {
    border-top: 1px solid var(--border);
    padding: 40px 0;
    color: var(--muted);
    font-size: 0.9rem;
}

.footer-grid {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links a,
.link-button {
    color: var(--muted);
    text-decoration: none;
    background: none;
    border: 0;
    padding: 0;
    font: inherit;
    cursor: pointer;
}

.footer-links a:hover,
.link-button:hover {
    color: var(--text);
}

/* ---------- Banner de cookies ---------- */

.consent {
    position: fixed;
    left: 20px;
    right: 20px;
    bottom: 20px;
    z-index: 60;
    max-width: 520px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 22px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
    font-size: 0.92rem;
}

.consent p {
    color: var(--muted);
    margin-bottom: 14px;
}

.consent p a {
    color: var(--text);
}

.consent-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

/* ---------- Páginas legales / 404 ---------- */

.page {
    padding: calc(var(--nav-h) + 64px) 0 96px;
}

.prose {
    max-width: 760px;
}

.prose h1 {
    font-size: clamp(2rem, 4vw, 2.8rem);
    margin-bottom: 12px;
}

.prose h2 {
    font-size: 1.35rem;
    margin-top: 2.2em;
}

.prose p,
.prose li {
    color: var(--muted);
}

.prose a {
    color: var(--accent);
}

.prose table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
}

.prose th,
.prose td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

.prose th {
    color: var(--text);
}

.table-wrap {
    overflow-x: auto;
}

.updated {
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--muted);
}

/* Datos pendientes de completar antes de publicar */
.todo {
    background: rgba(255, 200, 60, 0.15);
    color: #ffd166;
    padding: 0 4px;
    border-radius: 4px;
}

.center {
    text-align: center;
}

/* ---------- Animación de aparición ---------- */

.js .reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.js .reveal.is-visible {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .js .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .btn:hover {
        transform: none;
    }
}